tried to find a bug in html which was somewhere else,
added wxYield() call to wxBeginBusyCursor() which
should make the cursor appear immediately,
corrected wxMiniFrame so that clicking on the titlebar
makes it come to the front
Used CreateBase() in all controls
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@3171 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775